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US 2014/0151549 A1Published application
Ion detectors and methods of using them
AssigneePerkinElmer Health Sciences, Inc.
InventorsUrs Steiner, Daniel Robert Marshak
Life of this patent
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Abstract
Certain embodiments described herein are directed to ion detectors and systems. In some examples, the ion detector can include a plurality of dynodes, in which one or more of the dynodes are coupled to an electrometer. In other configurations, each dynode can be coupled to a respective electrometer. Methods using the ion detectors are also described.
Claims22
A mass spectrometer comprising:
- a sample introduction system;
- an ion source fluidically coupled to the sample introduction system;
- a mass analyzer fluidically coupled to the ion source;
- and
- a detector fluidically coupled to the mass analyzer, in which the detector comprises an electron multiplier comprising a plurality of dynodes each electrically coupled to a respective electrometer.
2 more elements
14-16. (canceled)
A mass spectrometer comprising:
- a sample introduction system;
- an ion source fluidically coupled to the sample introduction system;
- a mass analyzer fluidically coupled to the ion source;
- and
- a detector fluidically coupled to the mass analyzer, in which the detector comprises a single-stage electron multiplier comprising a plurality of dynodes, in which at least one internal dynode of the plurality of dynodes is electrically coupled to an electrometer.
2 more elements
24-133. (canceled)
Dependencies are inferred from the claim text.